package com.example.demo.config;

import com.example.demo.pojo.User;
import com.example.demo.service.UserService;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.*;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.session.Session;
import org.apache.shiro.subject.PrincipalCollection;
import org.apache.shiro.subject.Subject;
import org.springframework.beans.factory.annotation.Autowired;

public class UserRealm extends AuthorizingRealm {
    @Autowired
    UserService service;
    //授权
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
        SimpleAuthorizationInfo info=new SimpleAuthorizationInfo();
        //获取当前用户
        Subject subject= SecurityUtils.getSubject();
        User user= (User) subject.getPrincipal();//拿到user对象
        //授予权限
        /*info.addStringPermission(user.getPerms());*/
        info.addRole(user.getUrole());
        return info;
       /* SimpleAuthorizationInfo info=new SimpleAuthorizationInfo();
        info.addStringPermission("user:add");*//*
        *//*return info;*/
        /*return null;*/
    }
    //认证
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
        UsernamePasswordToken token= (UsernamePasswordToken) authenticationToken;
       User user=service.getUserByAccount(token.getUsername());
       if(user==null){
           return null;
       }
       Subject subject=SecurityUtils.getSubject();
       Session session=subject.getSession();
       session.setAttribute("user",user);
        //封装密码确认
        return new SimpleAuthenticationInfo(user,user.getUpassword(),"");
    }
}
